CN101172314A - Method of producing tiny special-shaped composite connection point strip - Google Patents
Method of producing tiny special-shaped composite connection point strip Download PDFInfo
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- CN101172314A CN101172314A CNA2006101141661A CN200610114166A CN101172314A CN 101172314 A CN101172314 A CN 101172314A CN A2006101141661 A CNA2006101141661 A CN A2006101141661A CN 200610114166 A CN200610114166 A CN 200610114166A CN 101172314 A CN101172314 A CN 101172314A
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Abstract
The invention relates to a manufacturing method of a micro-profiled contact tape, the method directly performs recombination to a noble metal round wire and a basal body band through the continuous roll welding technology, and then the formation is performed to good compound material though the ways of precise roll down or rolling and pulling and drawing, to manufacture products with required shapes. The method has the advantages that the noble metal directly adopts the way of the round wire, not only the compound proportion of the noble metal and basal body material not only is improved, the preparation of the micro-profiled contact tape with large width difference of an electrical contact layer and a basis layer is realized, but also the rate of finished products and the production efficiency are improved, and the production cost is reduced.
Description
Technical field
The present invention relates to a kind of manufacture method of tiny special-shaped composite connection point strip.
Technical background
Tiny special-shaped composite connection point strip is a kind of contact material that is composited by multiple metal or alloy.Because noble metal and alloy thereof have superior corrosion resistance, anti-melting welding, resistance to blocking energy and low contact resistance, are often used as electric contacting layer.But its spot welding characteristics is relatively poor, generally adopts copper, nickel or corronil as base layer (weld layer).The main purpose of this composite construction is 1. to save the noble metal energy; 2. reduce production costs; 3. make full use of the combination property of different metal or alloy.This composite is widely used in multiple occasions such as communication relay, AUTOMOTIVE RELAY, temperature controller, microswitch, while is owing to above-mentioned electrical component production is increasingly automated, usually tiny special-shaped composite connection point strip is processed into band, so that use at the series spot welding production line.
The combination process of tiny special-shaped composite connection point strip has roll welding, hot rolling, cold rolling, plating, vapour deposition etc.
Chinese invention patent ZL97112118.5 has proposed a kind of combined positioning method of tiny special-shaped composite connection point strip.Before compound, will treat compound last band be processed into 1-5 heterotypic strip of leading a muscle, following band is processed into the abnormal shape band of 1-5 on band and the corresponding position guiding groove of last band.Carry out upper and lower two kinds of special-shaped bands compound then.
Chinese invention patent ZL97116649.8 has proposed a kind of manufacture method with tiny special-shaped composite connection point strip of super thin electric contacting layer.This method is that electric contacting layer material and the intermediate layer material that will have width of the same race carry out compound, by the rolling square-section band that is processed into, compound once more with the intermediate layer then, through said process repeatedly, make the band in an electric contacting layer and n intermediate layer, last and base layer carries out compound.
Tiny special-shaped composite connection point strip cross sectional shape complexity has the combination of triangle, trapezoidal, circular arc or several shapes.The tiny special-shaped composite connection point strip that the present invention relates to is made of double layer of metal or its alloy, and electric contacting layer width and product overall width differ big or electric contacting layer and base layer large percentage (greater than 1: 3).The present invention also relates to the manufacturing process of the micro-special-shaped composited contact material of this kind.
Summary of the invention
The manufacture method that the purpose of this invention is to provide a kind of tiny special-shaped composite connection point strip.In this manufacture method, the complex method of material adopts continuous roll welding compound.At the roll welding compound tense, generally will compound materials processing become the band of equal width, identical or different thickness.Simultaneously, because the compound characteristic of roll welding, the compositely proportional of material will be controlled in 1: 2.8, and the thickness of every layer material is not less than 0.2mm.In order to increase compositely proportional, Chinese patent ZL97116649.8 adopts repeatedly compound+orthopedic worker worker sesame to increase compositely proportional, so significantly improved the materials processing cost.In addition, electric contacting layer and base material width are had the material of obvious gap, orthopedic processing is difficult to carry out and causes this series products can't carry out follow-up moulding.At roll welding combination process and product characteristics, the present invention proposes directly to adopt circle silk and the compound peculiar methods of matrix side's silk, and the specific design scheme is as follows:
1, at first with the processing of noble metal or precious metal alloys by operations such as melting, rolling, vacuum heat, wire drawing and atmosphere protection heat treatments; be drawn into the circle silk of diameter phi 0.1～1mm at last; heat-treat adjustment hardness at continuous annealing furnace then, protective gas is hydrogen, nitrogen or both gaseous mixtures.The kind of root a tree name material, size adjusting and final mechanical property requirements, annealing temperature is controlled in 500～800 ℃ of scopes, and 2～20 meters/minute of annealing speed adopt the continuous ultrasound ripple to clean and remove greasy dirt and other pollutant, last accurate around to bobbin, be made as the electric contacting layer material.
2, with operations such as base metal (as copper or copper alloy) melting, rolling and vacuum heat, be drawn into and be of a size of diameter
0.3-4mm circle silk, roll forming is the band that locating slot is arranged then, the typing groove be shaped as circular arc (Fig. 2 b-1) or triangle (Fig. 2 b-2).As shown in Figure 2, the circle filament diameter is φ, the radius of circular arc
The circular arc or the leg-of-mutton degree of depth
Leg-of-mutton angle beta=100 °～150 °.The center line of locating slot should overlap with the center line of matrix band, and maximum deviation is no more than 0.005mm, promptly shown in Fig. 2 | and L1-L2|≤0.01mm.Kind, size and final performance requirement according to material are heat-treated, and heat treatment temperature is controlled in 650～850 ℃ of scopes.At last, adopt ultrasonic wave to clean and remove greasy dirt and other pollutant, as matrix band material.
3, electric contacting layer material after will cleaning and base layer material use accurate after-combustion equipment coiling to special-purpose bobbin (Fig. 1-1).
4, will be equipped with and treat that compound material is installed on the corresponding creel of roll welding equipment complex.
5, electric contacting layer material and matrix material are passed through guide roller (Fig. 1-4), guarantee the straight system that leads (Fig. 1-5) that enters of wire rod, and, carry out compound with roll welding electrode wheel (Fig. 1-2) fixed position.Roll welding complex parameter scope: electrode current 50～4500A (ampere); Voltage 1～60V (volt); Electrode pressure 0.2～2.5MPa, recombination velocity 0.9-10 rice/minute.Compound good composite, by adjusting roll welding complex parameter and control circle silk size, can be obtained as Fig. 3 and shape shown in Figure 5 to bobbin (Fig. 1-3) by the coiling of precision.
6, can improve interfacial bonding strength and adjust the mechanical property of each layer by heat treatment, heat treatment temperature be controlled at 500～850 ℃ of scopes.
7, with compound good composite through rolling or roll the tiny special-shaped composite connection point strip that mode that die drawing pulls out is processed into respective shapes (Fig. 4, Fig. 6).
The number of plies of described tiny special-shaped composite connection point strip is 2 layers;
The electric contacting layer material of described tiny special-shaped composite connection point strip is gold and gold-base alloy, silver, silver-base alloy etc.Gold-base alloy comprises AuAgPt, AuAgNi, AuAg8, AuAg10, AuCo, AuNi5; Silver-base alloy comprises AgPd40, AgPd50, AgPd60.
The base layer material of described tiny special-shaped composite connection point strip is copper, nickel, corronil or monel metal.Corronil comprises CuNi20, CuNi30, CuNi44.
Described tiny special-shaped composite connection point strip electric contacting layer thickness is at the 0.01-0.1 millimeter, and length is not less than 1000 meters.
The matrix ligament thickness of described tiny special-shaped composite connection point strip is the 0.2-0.6 millimeter, and width is the 0.7-1.5 millimeter, and length is not less than 1000 meters.
The length of described tiny special-shaped composite connection point strip is not less than 1000 meters.
The advantage of the manufacture method of tiny special-shaped composite connection point strip of the present invention is:
1, electric contacting layer directly adopts the circle silk compound among the present invention, has reduced manufacturing procedure, has reduced the difficulty of processing for the treatment of composite, thereby reduces the processing cost of material.
2, the ratio of electric contacting layer of the present invention and base layer can be brought up to maximum 1: 6, enhances productivity more than 1 times.
3, the present invention is not only applicable to the electric contacting layer occasion identical with the base layer width, and is applicable to that width has the occasion of obvious gap.
4, the compound special-shaped composite contact tape of the present invention, the compound bond strength height of interlayer, composite bed thickness is even.
Description of drawings
Fig. 1 is the compound schematic diagram of roll welding.
1 is reel, and 2 are the roll welding electrode wheel, and 3 is bobbin, and 4 is guide roller,
5 for leading a system, and 6 is the electric contacting layer material, and 7 is the base layer material
Fig. 2 a is the sectional view of electric contacting layer material.
Fig. 2 b-1 is a base layer material b-1 sectional view.
Fig. 2 b-2 is a base layer material b-2 sectional view.
Fig. 3 is an A-A portion enlarged drawing (example 1) among Fig. 1.
Fig. 4 is product cross section figure.
Fig. 5 is an A-A portion enlarged drawing (example 2) among Fig. 1.
Fig. 6 is product cross section figure.
In Fig. 2～6: a is the electric contacting layer material, and b is the base layer material.
The specific embodiment
Example one:
Fig. 4 is width 1.0mm, and thickness 0.42 passes through the multimode drawing, and after Overheating Treatment, preparation
The AuAgPt25-6 alloy, be the Ni matrix band of 0.80 * 0.4mm by drawing, rolling and heat treatment preparation size.Compound by roll welding, make it become cross section long composite strip as shown in Figure 3, and compound good composite strip evenly is wound on the bobbin.Adjust mechanical property parameters by heat treatment, to guarantee the final performance of product.Off-the-shelf band is carried out precise forming, and the cross section of the special-shaped composite strip of gained as shown in Figure 4.This example is specially adapted to two-layer composite width in the product and has situation than big-difference.
Example two:
By the multimode drawing, and after Overheating Treatment, preparation
The AgPd50 alloy wire; By drawing, rolling and heat treatment preparation size is the CuNi20 alloy substrate band of 0.85 * 0.45mm.Compound by roll welding, make it become as shown in Figure 5 banded composite.Compound good band is become product as shown in Figure 6 by orthopedic, heat treatment, precise forming.This example is specially adapted to electric contacting layer and base layer ratio greater than 1: 3 and the identical situation of two-layer width.
Claims (7)
1. the manufacture method of a tiny special-shaped composite connection point strip is characterized in that,
(1) noble metal or precious metal alloys are behind melting, rolling, wire drawing, vacuum heat and atmosphere protection heat treatment step, be processed into circle silk material, heat-treat adjustment hardness at continuous annealing furnace then, annealing temperature is controlled at 500～800 ℃, annealing speed is 2～20 meters/minute, clean line at the continuous ultrasound ripple and get on to degrease, last accurate coiling is to bobbin, as the electric contacting layer material;
(2) base material is processed as the band of a with groove, accurate coiling is to bobbin, as the base layer material after the ultrasonic wave degreasing;
(3) electric contacting layer material and base layer material are entered the system (5) that leads by guide roller (4), and carry out compound with roll welding electrode wheel (2) fixed position;
(4) compound good material through rolling or roll the tiny special-shaped composite connection point strip that mode that die drawing pulls out is processed into respective shapes.
2. according to the manufacture method of a kind of tiny special-shaped composite connection point strip of claim 1, it is characterized in that the electric contacting layer material is gold, gold-base alloy, silver, silver-base alloy; Gold-base alloy comprises AuAgPt, AuAgNi, AuAg8, AuAg10, AuCo, AuNi5; Silver-base alloy comprises AgPd40, AgPd50, AgPd60.
3. according to the manufacture method of a kind of tiny special-shaped composite connection point strip of claim 1, it is characterized in that: the base layer material is a copper, nickel, and corronil, monel metal, corronil comprises CuNi20, CuNi30, CuNi44.
4. according to the manufacture method of a kind of tiny special-shaped composite connection point strip of claim 1; it is characterized in that: said heat treatment is that in atmosphere protection continuous heat and the vacuum heat one or both are used in combination, and atmosphere protection gas is that hydrogen, nitrogen or both gaseous mixtures are as protective gas.
5. according to the manufacture method of a kind of tiny special-shaped composite connection point strip of claim 1, it is characterized in that a noble metal circle silk material is Ф 0.1～1mm silk material.
6. according to the manufacture method of a kind of tiny special-shaped composite connection point strip of claim 1, it is characterized in that the ribbon shape of with groove is triangle, circular arc.
7. according to the manufacture method of a kind of tiny special-shaped composite connection point strip of claim 1, it is characterized in that the groove of matrix material is parallel with band, and the centerline deviation of the center line of groove and matrix band is no more than 0.005mm.
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| CNB2006101141661A CN100531994C (en) | 2006-10-31 | 2006-10-31 | Method of producing tiny special-shaped composite connection point strip |
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| CNB2006101141661A CN100531994C (en) | 2006-10-31 | 2006-10-31 | Method of producing tiny special-shaped composite connection point strip |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104384186A (en) * | 2014-09-23 | 2015-03-04 | 重庆川仪自动化股份有限公司 | Preparation method of gold-containing three-layer micro deformed electric contact material |
| CN105108146A (en) * | 2015-08-31 | 2015-12-02 | 沈阳海纳鑫科技有限公司 | Process method for conducting additive manufacturing on accessories and parts with precious metal wire materials as raw materials |
| CN105772929A (en) * | 2016-05-24 | 2016-07-20 | 苏州创浩新材料科技有限公司 | Preparation technology for silver-copper-silver three-layer side-direction compounding micro-profiled electric contact strip |
| CN106735811A (en) * | 2016-12-27 | 2017-05-31 | 上海大趋金属科技有限公司 | A kind of preparation method of arcuation interface tiny special-shaped composite connection point strip |
| CN106807750A (en) * | 2016-12-27 | 2017-06-09 | 上海大趋金属科技有限公司 | A kind of forming method of tiny special-shaped composite connection point strip material |
| CN110355533A (en) * | 2019-07-29 | 2019-10-22 | 东莞市中一合金科技有限公司 | A kind of preparation process of the continuous soldering composite material of copper-tin |
| CN110404998A (en) * | 2019-07-29 | 2019-11-05 | 东莞市中一合金科技有限公司 | A kind of preparation method for covering layer gold MULTILAYER COMPOSITE contact special section |
| CN111546015A (en) * | 2020-05-20 | 2020-08-18 | 上海大趋金属科技有限公司 | Method for manufacturing special-shaped composite interface |
| CN113231795A (en) * | 2021-05-17 | 2021-08-10 | 上海大趋金属科技有限公司 | Forming method of micro-special-shaped composite strip with pointed top shape |
| CN114932170A (en) * | 2022-05-07 | 2022-08-23 | 佛山通宝精密合金股份有限责任公司 | Production process of precious and cheap bimetal layered composite material |
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2006
- 2006-10-31 CN CNB2006101141661A patent/CN100531994C/en active Active
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104384186A (en) * | 2014-09-23 | 2015-03-04 | 重庆川仪自动化股份有限公司 | Preparation method of gold-containing three-layer micro deformed electric contact material |
| CN105108146A (en) * | 2015-08-31 | 2015-12-02 | 沈阳海纳鑫科技有限公司 | Process method for conducting additive manufacturing on accessories and parts with precious metal wire materials as raw materials |
| CN105108146B (en) * | 2015-08-31 | 2018-05-25 | 沈阳海纳鑫科技有限公司 | It is a kind of using noble metal silk material as the process of raw material increasing material manufacturing ornaments and component |
| CN105772929A (en) * | 2016-05-24 | 2016-07-20 | 苏州创浩新材料科技有限公司 | Preparation technology for silver-copper-silver three-layer side-direction compounding micro-profiled electric contact strip |
| CN106735811A (en) * | 2016-12-27 | 2017-05-31 | 上海大趋金属科技有限公司 | A kind of preparation method of arcuation interface tiny special-shaped composite connection point strip |
| CN106807750A (en) * | 2016-12-27 | 2017-06-09 | 上海大趋金属科技有限公司 | A kind of forming method of tiny special-shaped composite connection point strip material |
| CN110355533A (en) * | 2019-07-29 | 2019-10-22 | 东莞市中一合金科技有限公司 | A kind of preparation process of the continuous soldering composite material of copper-tin |
| CN110404998A (en) * | 2019-07-29 | 2019-11-05 | 东莞市中一合金科技有限公司 | A kind of preparation method for covering layer gold MULTILAYER COMPOSITE contact special section |
| CN111546015A (en) * | 2020-05-20 | 2020-08-18 | 上海大趋金属科技有限公司 | Method for manufacturing special-shaped composite interface |
| CN111546015B (en) * | 2020-05-20 | 2022-02-11 | 上海大趋金属科技有限公司 | Method for manufacturing special-shaped composite interface |
| CN113231795A (en) * | 2021-05-17 | 2021-08-10 | 上海大趋金属科技有限公司 | Forming method of micro-special-shaped composite strip with pointed top shape |
| CN114932170A (en) * | 2022-05-07 | 2022-08-23 | 佛山通宝精密合金股份有限责任公司 | Production process of precious and cheap bimetal layered composite material |
| CN114932170B (en) * | 2022-05-07 | 2024-02-06 | 佛山通宝精密合金股份有限公司 | Production process of precious and cheap bimetal layered composite material |
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| CN100531994C (en) | 2009-08-26 |
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